:root{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #f2f4f7;--border: #dfe3e8;--border-strong: #c3cad3;--text: #17202a;--text-dim: #5c6b7a;--accent: #2f6df6;--accent-soft: #e8f0ff;--accent-text: #ffffff;--danger: #c2372c;--danger-soft: #fdecea;--success: #1f7a44;--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .06);--radius: 12px;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #0e1117;--surface: #161b23;--surface-2: #1d232c;--border: #2a323d;--border-strong: #3c4654;--text: #e8edf3;--text-dim: #98a5b3;--accent: #5b8dfb;--accent-soft: #17233c;--accent-text: #0b1220;--danger: #f08b81;--danger-soft: #33201e;--success: #66d19e;--shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);color-scheme:dark}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font:15px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica 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.15s}.dropzone:hover,.dropzone:focus-visible{border-color:var(--accent);background:var(--accent-soft);outline:none}.dropzone.is-dragging{border-color:var(--accent);background:var(--accent-soft)}.dropzone-icon{font-size:34px;line-height:1;margin-bottom:12px}.dropzone-title{font-size:17px;font-weight:600;margin-bottom:6px}.dropzone-hint{color:var(--text-dim);font-size:13px}.sources{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;justify-content:center}.source-btn{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:9px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:border-color .15s,background .15s}.source-btn:hover:not(:disabled){border-color:var(--border-strong);background:var(--surface-2)}.source-btn:disabled{opacity:.45;cursor:not-allowed}.source-btn 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var(--border);border-radius:10px;background:var(--surface)}.file-row+.file-row{margin-top:10px}.file-row.is-failed{background:var(--danger-soft);border-color:transparent}.thumb{width:52px;height:52px;border-radius:7px;object-fit:cover;background:var(--surface-2);flex:none}.thumb-placeholder{display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-dim)}.file-meta{min-width:0;flex:1}.file-name{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-sub{font-size:12.5px;color:var(--text-dim);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-sub .error{color:var(--danger)}.file-actions{display:flex;align-items:center;gap:6px;flex:none}.saving{color:var(--success);font-weight:600}.notice{border-radius:9px;padding:11px 14px;font-size:13.5px;margin-bottom:16px;border:1px solid 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